How can completely start over?

Hey guys, I want to completely erase my website and start from scratch with a new template.

This article was not helpful: https://support.squarespace.com/hc/en-us/articles/205815378-Starting-over?platform=v6&websiteId=6256ae3b595d5667ae8e7d57

Can someone tell me how can I completely overwrite my current site and start another one?

Thanks

It very much depends on the template you are using if it is  7.0  If in 7.1 there is no template change option due to the fact 7.1 is just one template with a bunch of named designs, which means you can delete any page and start over and make it look like any other 7.1 design. Now changing from 7.1 to 7.0 is possible but requires a new trial and activation setup. With both, you can create a whole new site in the unlinked section of your site including portfolio pages while leaving the original part of your site active and then swapping out the pages.